Douching: Cleansing the vagina with douches or feminine hygiene products can disrupt the natural vaginal flora, making it more susceptible to infections.
Use of Antibiotics: Broad-spectrum antibiotics can kill both harmful and beneficial bacteria, leading to an imbalance in the vaginal microbiome.
Intercourse: While BV is not considered a sexually transmitted infection (STI), frequent or new sexual partners can disrupt the vaginal flora.